Beautyrest Black K-Class Review

Anna Keller
Chief Sleep Researcher
May 23, 2023
Experts Rating:

The Beautyrest Black K-Class is a luxury mattress that offers an unmatched balance of support and comfort. Its advanced features, such as the T3 Pocketed Coil® Technology for exceptional durability and the BlackICE™ 4.0 technology for superior temperature management.


The BeautyRest Black mattress offers unparalleled comfort through its combination of premium foam layers and individually wrapped coils. It conforms to the body's contours, relieving pressure points and promoting deep, rejuvenating sleep.

With its cooling gel-infused foam and breathable cover, the BeautyRest Black mattress regulates sleep temperature effectively, providing a cool and comfortable sleeping environment. It is particularly beneficial for hot sleepers who want to avoid overheating.

The BeautyRest Black mattress excels in providing exceptional back support, thanks to its individually wrapped coils and supportive foam layers. It promotes proper spinal alignment and helps alleviate back pain, offering a restorative sleep experience.


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You want a mattress that provides both firm support and plush comfort.

You are a hot sleeper looking for superior cooling features.

You value durability and longevity in a mattress.

You suffer from back or joint pain and need a mattress with excellent support.

You appreciate a luxurious sleep experience with advanced features.

You are looking for a mattress with a premium, luxurious aesthetic.


You prefer all-foam or latex mattresses over hybrid models.

You are not a fan of pillow-top designs in a mattress.

You prefer a more traditional or minimalist mattress design.


The Beautyrest Black K-Class mattress is a product of Beautyrest, a brand that has been synonymous with luxury and comfort in the mattress industry for over a century. Beautyrest has always been at the forefront of mattress technology, and the K-Class series represents the pinnacle of the brand's innovation and craftsmanship. Combining the advanced T3 Pocketed Coil® Technology with premium comfort materials and state-of-the-art temperature regulation, the K-Class offers a sleep experience that is both luxuriously comfortable and refreshingly cool. With its plush comfort, superior support, and advanced cooling features, we believe this mattress is a great choice for those who are looking for a high-quality, durable, and luxurious sleep solution.

Comfort & Firmness

The Beautyrest Black K-Class mattress offers a unique combination of plush comfort and firm support. The pillow top design gives the mattress a luxurious feel, while the firm comfort level ensures optimal spinal alignment and support. This makes it an ideal choice for back and stomach sleepers, or anyone who prefers a firmer feel to their mattress but doesn't want to compromise on comfort.

Sleep Temperature

The Beautyrest Black K-Class mattress incorporates several advanced technologies to ensure optimal sleep temperature. The BlackICE™ 4.0 technology combines four cooling actions to help you sleep cooler and more comfortably. These include a cool-to-the-touch fabric, heat-dissipating materials in the comfort layers, a breathable construction that promotes airflow, and cooling materials in the mattress core.

In addition to the BlackICE™ 4.0 technology, the Beautyrest Black K-Class also utilizes RightTemp™ Memory Foam. This memory foam is infused with highly conductive and strong carbon fiber for temperature regulation and pressure relief. The carbon fiber helps to draw heat away from the sleeper, while also providing exceptional support and strength for the mattress.

The combination of BlackICE™ 4.0 technology and RightTemp™ Memory Foam makes this mattress a fantastic option for hot sleepers. It provides a comprehensive solution to overheating during sleep, keeping the surface of the mattress cool to the touch and helping to maintain a comfortable body temperature throughout the night.


The Beautyrest Black K-Class mattress has a complex layering system that contributes to its exceptional comfort and support. At its core is the patented T3 Pocketed Coil® Technology. This system features three steel strands wound into one coil, providing enhanced durability, pressure relief, and motion separation.

Above the coil system is the layer of RightTemp™ Memory Foam, offering enhanced heat dissipation and pressure relief. On top of this layer, there's a Comfort Response™ Latex layer that provides a responsive and supportive sleep surface, preventing the sleeper from sinking too far into the mattress.

The mattress also includes Beautyrest's GelTouch® Foam for added comfort and pressure relief. The top layer consists of the Black HD Memory Foam, a high-density memory foam that molds to the body for individualized comfort and support. The mattress is topped off with a BlackICE™ 4.0 cover that helps to maintain a cool and comfortable sleep temperature.

Back Support

The Beautyrest Black K-Class mattress provides excellent back support, thanks to its firm feel and advanced support technologies. The T3 Pocketed Coil® Technology is designed to provide precise support and motion separation, ensuring optimal spinal alignment.

The Comfort Response™ Latex layer and the Black HD Memory Foam work together to provide contouring support, adapting to the sleeper's body shape for targeted support and pressure relief. The combination of these elements results in a mattress that supports the natural curve of the spine, helping to prevent back pain and discomfort.

Sagging & Edge Support

The Beautyrest Black K-Class mattress offers superior sagging and edge support. The T3 Pocketed Coil® Technology not only provides overall mattress support but also strengthens the mattress edges, preventing sagging and providing a larger usable sleep surface.

The high-quality, durable materials used in the construction of the mattress also contribute to its resistance to sagging over time. The firm feel of the mattress helps maintain its shape and provides a consistently supportive and comfortable sleep surface.

Motion Isolation

The Beautyrest Black K-Class mattress does an excellent job of isolating motion, thanks to the T3 Pocketed Coil® Technology. Each coil functions independently, allowing for better motion isolation – when one person moves or gets up, the other sleeper is less likely to be disturbed. This feature makes the mattress an excellent choice for couples or for those who share their bed with children or pets.

Cover Fabric Quality

The Beautyrest Black K-Class mattress features a high-quality cover made from cool-to-the-touch fabric. This fabric not only adds to the mattress's luxury feel but also contributes to its temperature-regulating properties. The cover is breathable, helping to promote airflow and further enhance the cooling performance of the mattress. Its sleek and modern design adds a touch of luxury to any bedroom.


Beautyrest has a reputation for producing high-quality, durable mattresses, and the Black K-Class is no exception. The mattress's T3 Pocketed Coil® Technology provides enhanced durability, while the high-density foams and latex layer ensure long-term comfort and support. The quality of the materials used in the construction of this mattress suggests that it will hold up well over time, providing a consistent sleep experience for years to come.

Moreover, Beautyrest provides a 10-year warranty for the Black K-Class mattress. This speaks volumes about the brand's confidence in the longevity of their product and provides assurance for customers that their investment will be protected against any manufacturing defects for a considerable period.

Commitment to Sustainability

Beautyrest takes steps to ensure that their manufacturing processes are as eco-friendly as possible. They are committed to reducing their carbon footprint, promoting recycling, and working towards sustainability. For instance, they have made efforts to minimize waste in their manufacturing processes and to recycle materials where possible. They also adhere to strict national and international standards that regulate the safe and responsible disposal of old mattresses.

While not every component in the Beautyrest Black K-Class mattress is made from recycled or natural materials, the company’s commitment to overall sustainability is commendable. Beautyrest continues to explore opportunities to enhance sustainability in their products without compromising the quality and performance that their customers have come to expect.


The Beautyrest Black K-Class mattress comes with a 10-year limited warranty. This warranty covers manufacturing defects in the mattress when it's used under normal conditions and for the purpose intended. This includes defects in the materials used to construct the mattress and in the workmanship. The warranty gives customers peace of mind that they are making a protected investment.

Customer Service

Beautyrest has a strong reputation for providing excellent customer service. They have a dedicated customer service team that is available to answer any queries or concerns. Customers report that the Beautyrest team is responsive, helpful, and committed to resolving any issues that arise.

Whether it's questions about the features and benefits of the Beautyrest Black K-Class mattress, concerns about delivery and setup, or issues that arise after purchase, customers can rely on Beautyrest's customer service team to provide assistance. Beautyrest also offers a comprehensive FAQ section on their website that answers common questions about their products and policies.


After extensive evaluation, we recommend the Beautyrest Black K-Class mattress for those seeking a luxurious, firm, and supportive sleep experience. With its advanced cooling technology, high-quality materials, superior back support, and excellent customer service, this mattress stands out as a premium choice in the luxury mattress market.

The exceptional motion isolation makes it an ideal choice for couples, while the advanced temperature regulation technologies make it suitable for hot sleepers. Furthermore, the company’s commitment to sustainability and customer satisfaction enhances the overall value of the mattress.

While it comes with a higher price tag, the luxurious comfort, advanced features, and durability of the Beautyrest Black K-Class mattress make it a worthwhile investment for a quality sleep experience. With its blend of luxury, comfort, and technology, this mattress offers a sleep experience that justifies the price.

With all these factors in mind, we conclude that the Beautyrest Black K-Class mattress is an excellent choice for those looking for a luxury mattress that offers a combination of firm support, plush comfort, advanced temperature regulation, and long-lasting durability.

Frequently Asked Questions

What makes the Beautyrest Black K-Class unique?

The Beautyrest Black K-Class is unique for its blend of advanced technologies, including the T3 Pocketed Coil® Technology for enhanced support and durability, BlackICE™ 4.0 technology for superior temperature regulation, and RightTemp™ Memory Foam for pressure relief and cooling comfort.

How does the Beautyrest Black K-Class regulate sleep temperature?

The mattress uses BlackICE™ 4.0 technology and RightTemp™ Memory Foam to regulate sleep temperature. These technologies work together to maintain a cool sleep environment by drawing heat away from the body and promoting airflow through the mattress.

Can the Beautyrest Black K-Class help with back pain?

Yes, the Beautyrest Black K-Class can help with back pain. Its firm feel, coupled with the T3 Pocketed Coil® Technology and Comfort Response™ Latex layer, provides excellent back support and helps maintain proper spinal alignment.

What is the Beautyrest Black K-Class's trial period and warranty?

The Beautyrest Black K-Class comes with a 100-night trial period and a 10-year limited warranty. This allows customers to try the mattress in the comfort of their own home and ensure it's the right fit for them.

Does the Beautyrest Black K-Class offer free delivery?

Yes, Beautyrest offers free white glove delivery for the Black K-Class. This includes the setup of the new mattress and removal of the old one.

Is the Beautyrest Black K-Class environmentally friendly?

While not all components of the Beautyrest Black K-Class are made from natural or recycled materials, the company is committed to sustainability in their manufacturing processes and the responsible disposal of old mattresses.

Beautyrest Black Pricing